Let's roll up our sleeves and solve this. We have 47 and we're going to multiply it by 80, essentially adding 47 to itself 80 times.
Step 1: 0 + 47 = 47
Step 2: 47 + 47 = 94
Step 3: 94 + 47 = 141
Step 4: 141 + 47 = 188
Step 5: 188 + 47 = 235
Step 6: 235 + 47 = 282
Step 7: 282 + 47 = 329
Step 8: 329 + 47 = 376
Step 9: 376 + 47 = 423
Step 10: 423 + 47 = 470
Step 11: 470 + 47 = 517
Step 12: 517 + 47 = 564
Step 13: 564 + 47 = 611
Step 14: 611 + 47 = 658
Step 15: 658 + 47 = 705
Step 16: 705 + 47 = 752
Step 17: 752 + 47 = 799
Step 18: 799 + 47 = 846
Step 19: 846 + 47 = 893
Step 20: 893 + 47 = 940
Step 21: 940 + 47 = 987
Step 22: 987 + 47 = 1034
Step 23: 1034 + 47 = 1081
Step 24: 1081 + 47 = 1128
Step 25: 1128 + 47 = 1175
Step 26: 1175 + 47 = 1222
Step 27: 1222 + 47 = 1269
Step 28: 1269 + 47 = 1316
Step 29: 1316 + 47 = 1363
Step 30: 1363 + 47 = 1410
Step 31: 1410 + 47 = 1457
Step 32: 1457 + 47 = 1504
Step 33: 1504 + 47 = 1551
Step 34: 1551 + 47 = 1598
Step 35: 1598 + 47 = 1645
Step 36: 1645 + 47 = 1692
Step 37: 1692 + 47 = 1739
Step 38: 1739 + 47 = 1786
Step 39: 1786 + 47 = 1833
Step 40: 1833 + 47 = 1880
Step 41: 1880 + 47 = 1927
Step 42: 1927 + 47 = 1974
Step 43: 1974 + 47 = 2021
Step 44: 2021 + 47 = 2068
Step 45: 2068 + 47 = 2115
Step 46: 2115 + 47 = 2162
Step 47: 2162 + 47 = 2209
Step 48: 2209 + 47 = 2256
Step 49: 2256 + 47 = 2303
Step 50: 2303 + 47 = 2350
Step 51: 2350 + 47 = 2397
Step 52: 2397 + 47 = 2444
Step 53: 2444 + 47 = 2491
Step 54: 2491 + 47 = 2538
Step 55: 2538 + 47 = 2585
Step 56: 2585 + 47 = 2632
Step 57: 2632 + 47 = 2679
Step 58: 2679 + 47 = 2726
Step 59: 2726 + 47 = 2773
Step 60: 2773 + 47 = 2820
Step 61: 2820 + 47 = 2867
Step 62: 2867 + 47 = 2914
Step 63: 2914 + 47 = 2961
Step 64: 2961 + 47 = 3008
Step 65: 3008 + 47 = 3055
Step 66: 3055 + 47 = 3102
Step 67: 3102 + 47 = 3149
Step 68: 3149 + 47 = 3196
Step 69: 3196 + 47 = 3243
Step 70: 3243 + 47 = 3290
Step 71: 3290 + 47 = 3337
Step 72: 3337 + 47 = 3384
Step 73: 3384 + 47 = 3431
Step 74: 3431 + 47 = 3478
Step 75: 3478 + 47 = 3525
Step 76: 3525 + 47 = 3572
Step 77: 3572 + 47 = 3619
Step 78: 3619 + 47 = 3666
Step 79: 3666 + 47 = 3713
Step 80: 3713 + 47 = 3760

So, 47*80 = 3760